I got on the bus, and the person sitting beside me was
listening to music, and he was wearing headphone and I could hear his music,whatever
he was listening to, it was loud but still his facial expression showed that he
was not satisfied with his headphone result, bus came to my stop and I got off.
Went down to the trains and then again there was another person doing the same
thing with the same kind of facial expression and at that point of time
question came to my mind why do people play their music that loud.
I had a different point of view what they were trying to do.
They are trying to enjoy the music, but the only problem is that there was a
lot of back ground noise, and this is what bothers me to. For this type of
problem there are two different types of headphones available in the market
passive noise reduction / active noise
reduction.
Passive noisereduction It is one of the most simple of its kind it can also be stated as
noise isolation. The earpieces of these kind of headset or headphone are
designed in such a way that it goes into your ear canal and makes it a perfect
seal by squeezing into it. They kind of look like the ear bud we use while
swimming.
Active noisereduction is one of the most advanced mean of getting things done. These are
the noise cancelling headphones used in the aviation by the pilots with the most
sophisticated technology. The built in microphone persistently samples the
noise and plays it one the loudspeaker thus creating and opposite echo and is cancel.
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